Leviton 21A05-2 Serial PC Cable Connects the built in serial port of a Lumina or Omni home control system to personal computers for Windows PC Access and other third party systems 7-Foot Serial PC Cable DB-9F Connector Compatible with OmniPro II, Omni Iie, Omni LTe, Lumina Pro, and Lumina control systems Leviton recommends professional installation on Security and Automation products. To find an installer in your area, please email dealer@leviton.com